Re: [Discuss-gnuradio] Time delaying a signal

[asad umer]

I am also  using the delay block in the way u have mentioned but the signal in scope doesn't act accordingly ,it remains in phase with the original...

On Mon, May 12, 2014 at 11:27 PM, Mike Jameson <address@hidden> wrote:

To shift just the phase you can use the 'Complex To Float' block in GRC which separates the stream into real and imaginary components.  After adding the delay block in line with the imaginary component you can then recombine the stream by using the 'Float To Complex' block.

Mike

--
Mike Jameson M0MIK BSc MIET
Email: address@hidden
Web: http://scanoo.com

On Mon, May 12, 2014 at 7:23 PM, Marcus D. Leech <address@hidden> wrote:

On 05/12/2014 02:19 PM, Marcus Müller wrote:

Well, not that I'm aware of.
However, FFT, multiplication with a signal source, IFFT is not really hard to do, and it's what a time shift mathematically is.

Greetings,
Marcus

Also, a phase-shift is just a complex multiply by:

complex(cos(ang),sin(ang))

With angle in radians

That's how I do manual phase correction in the interferometer support in simple_ra

--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org


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